CVE-2020-12663

high

Description

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html

http://www.openwall.com/lists/oss-security/2020/05/19/5

https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/

https://lists.fedoraproject.org/archives/list/[email protected]/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/

https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc

https://usn.ubuntu.com/4374-1/

https://www.debian.org/security/2020/dsa-4694

Details

Source: MITRE

Published: 2020-05-19

Updated: 2021-02-17

Type: CWE-835

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH